GREY'S ANATOMY - "Love, Loss and Legacy" - The residents try their hardest to impress surgical great Catherine Avery-who also happens to be Jackson's mother-when she arrives at Seattle Grace to perform a groundbreaking transplant surgery; Arizona and Alex find their hands tied with a confidentiality issue when a familiar patient comes into the ER; meanwhile, a love-struck Teddy throws a dinner party for the couples, and Bailey makes a decision regarding her love life, on Grey's Anatomy, THURSDAY, OCTOBER 13 (9:00-10:02 p.m., ET) on the ABC Television Network. (ABC/RICHARD CARTWRIGHT) SARA RAMIREZ, JESSICA CAPSHAW